acl_dup man page on FreeBSD

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ACL_DUP(3)		 BSD Library Functions Manual		    ACL_DUP(3)

NAME
     acl_dup — duplicate an ACL

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <sys/types.h>
     #include <sys/acl.h>

     acl_t
     acl_dup(acl_t acl);

DESCRIPTION
     The acl_dup() function returns a pointer to a copy of the ACL pointed to
     by the argument acl.

     This function may cause memory to be allocated.  The caller should free
     any releasable memory, when the new ACL is no longer required, by calling
     acl_free(3) with the (void*)acl_t as an argument.

     Any existing ACL pointers that refer to the ACL referred to by acl shall
     continue to refer to the ACL.

IMPLEMENTATION NOTES
     FreeBSD's support for POSIX.1e interfaces and features is still under
     development at this time.

RETURN VALUES
     Upon successful completion, this function shall return a pointer to the
     duplicate ACL.  Otherwise, a value of (acl_t)NULL shall be returned, and
     errno shall be set to indicate the error.

ERRORS
     If any of the following conditions occur, the acl_init() function shall
     return a value of (acl_t)NULL and set errno to the corresponding value:

     [EINVAL]		Argument acl does not point to a valid ACL.

     [ENOMEM]		The acl_t to be returned requires more memory than is
			allowed by the hardware or system-imposed memory man‐
			agement constraints.

SEE ALSO
     acl(3), acl_free(3), acl_get(3), posix1e(3)

STANDARDS
     POSIX.1e is described in IEEE POSIX.1e draft 17.  Discussion of the draft
     continues on the cross-platform POSIX.1e implementation mailing list.  To
     join this list, see the FreeBSD POSIX.1e implementation page for more
     information.

HISTORY
     POSIX.1e support was introduced in FreeBSD 4.0, and development contin‐
     ues.

AUTHORS
     Robert N M Watson

BSD			       January 28, 2000				   BSD
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